Machine for making paper bags.



PRIGKBR. MACHINE FOR MAKING PAPER BAGS. APPLICATION FILED DEG.-28\1906.

944,85 1 Patented Dec. 28, 1909.

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W. PRIGKER.

MACHINE FOR MAKING PAPER BAGS.

APPLICATION FILED DEO.28, 1906.

9443851, Patented Dec.28, 1909.

9 SHEETS-SHEET 2.

W. FRICKER.

I MACHINE FOR MAKING PAPER BAGS.

APPLIGATION FILED No.23; 1906.

944,851 Patented Dec. 28, 1909.

9 SHEETS-SHEET 3.

w. FRIGKER. MACHINE FOR MAKING PAPER BAGS.

APPLICATION FILED DEG. 28, 1906.

944,851. Patented De0.28,1909.

9 SHEETS-SHEET 4.

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MACHINE FOR MAKING PAPER BAGS.

APPLICATION FILED DBO. 2B, 1906.

944,85 1 Patented Dec. 28, 1909.

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W. FRICKER.

MACHINE FOR MAKING PAPER BAGS.

APPLICATION FILED DEC. 28, 1906.

944,851, Patented De0.28,1909.

9 SHEETS-SHEET 6.

W. FRICKER.

MAUHINB FOR MAKING PAPER BAGS.

APPLICATION FILED 1120.28, 1906.

944,851 Patented Dec. 28, 1909.

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APPLICATION TILED D30. 28, 1906.

944,85 1 Patented Dec. 28, 1909.

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MACHINE FOR MAKING PAPER BAGS.. APPLICATION FILED mmza, 1906.

944,851. Patented Dec.28,1909.

9 SHEETS-SHEET 9.

WALTER, FRICKEB, OF SOUTH WOODFORD, ENGLAND.

MACHINE FOR MAKING PAPER BAG-S.

9&4551.

Specification of Letters Patent.

Patented Dec. 28, 1909.

Application filed December 28, 1906. Serial No. 349,883.

To all whom it may concern:

Be it known that I, \VALTER Fnroxnn, a subject of the King of GreatBritain, residing at Kelbrook, Stanley Road, South -Woodford, county ofEssex, England, have invented certain new and useful Improvements inMachines for Making Paper Bags, of which the following is aspecification.

My invention relates to a machine for making paper bags, of either theoutward folded block bottom shape, or the inward folded block bottomshape, the change being made with but a slight alteration to themachine.

The bags can be made either lined or unlined from out sheets of paper orother like material, which are not of necessity cut to exact size, themechanism allowing of a good variation, without altering the size ofbag, thus obviating any waste caused by trimming to uniform size.

My invention will be clearly understood from the following descriptionaided by the accompanying drawings in which Figure 1. is a sideelevation of a machine. Fig. 2. is a cross section showing the risingand falling table and top pasting mechanism. Fig. 3. is a detail view ofthe first folding and top pasting device. Fig. 4. is a view showing thetop end pasting device. Fig. 5. is a front view of Fig. 4. Fig. 6. is aside view of the bottom end folders. Fig. 7. is a front view of same.Fig. 8. is a plan showing the shutters for closing the flaps. Fig. 9. isa view showing the bag after being folded and just previous to leavingthe mold. Fig. 10. is an elevation of the bottom of bag with the fingersand tabs in position. Fig. 11. is a view showing the bag flatteningdevices. Fig. 12. is a plan showing the flexible tuck springs inposition. Fig. 13 shows the sectors with a complete bag folded ready tobe passed to the rollers. Fig. 14. shows the complete bag being led tothe flattening rollers for delivery. Fig. 15 is a side elevation of themachine opposite to that shown in Fig. 1. Fig. 16 is an elevation of acam for operating a lever to move the rising table. Fig. 17 is anelevation of a cam for operating a shaft to move a lip for folding downone edge of the paper, and at the same time operate a pivoted lever foroperating paste boxes. Fig. 18 is an elevation of a cam for operating alever to fold down the other or pasted edge of the paper. Fig. 19 is anelevation of a cam for operating a lever to move through suitablemechanism a slide for passing the bag along the mold. Fig. 20 is anelevation of a cam for operating a lever to move an end paste box. Fig.21 is a side elevation of a cam for operating a rod to move appliancefor folding the bottom projecting side of the bag. Fig. 22 is anelevation of a camfor operating a lever to give the-shutters areciprocating radial motion. Fig. 23 is a plan of the mechanism foroperating the paste boxes. Fig. 24 is an elevation of a cam foroperating a lever to move a plunger to form the resistance to thefolders of laps. Fig. 25 is an elevation of a cam for operating adepending arm moving flexible tuck springs for folding in the open endof the bag.

The cut sheets 1 are fed by hand or by one or other of the automaticfeeding devices known, but preferably by hand, across a recessed risingand registering table 2 with sinking platform 8 controlled by a spring 4encircling its rod 5, which table 2 folds the paper against the sides oftwo parallel channel mold bars 6. Fixed to the back of this table 2 is amovable gage 7 adjustable to suit size of paper, and in the center ofthis gage 7 is a sensitive finger 8 fixed to the bed or frame 9 of themachine, and leaning over so as to nearly touch the paper on the risingtable 2. Inserted in this rising table 2 is a loose roller 10 againstwhich the finger 8 touches when rising.

The rising table 2 is supported by a rod 11 situate in bearings of theframe 9, as also is the platform rod 5. The platform is situate withinthe table, its rod 5 projecting through the bottom thereof, which rod isprovided with a collar 12 which finds a bearing against the under sideof the bottom of the table 2, and is thus held from projecting above thetable itself. The rod 11 is connected to a rocking lever 13, and isoperated to move the table 2 and platform 3 by a cam (see Fig. 16) onthe shaft 14.

As the table 2 and platform 3 rise, the finger 8 is caused to come incontact with the paper 1, and draws same up flush with the gage 7. Thesinking platform 8 now stops against the underside of the mold bar 6,the table 2 still rising and folding the paper up both sides of the moldbar 6 as more clearly shown in Fig. 3. A near side foldin by andoperated through a shaft 16 actuangle lip 15 on the arm 15 carried atedby a cam (see Fig. 17) on the shaft 14, then comes against the edge ofthe top mold bar 6, and folds down one edge of paper, and an off sidespring folding and pressing roller 17 carried by arms 18 actuated by alever 19 from a cam(see Fig. 18)on the shaft 14, moves across the topmold bar 6 and takes the other edge port-ion or flap of the paper withit and passing it just beneath a revolving paste spindle 20, from whichthe paper receives suflicient paste, from a box 21, to enable the edgesof the paper to adhere to each other, when pressed by the roller 17previously mentioned. The paste roller 20 is actuated by ratchetmechanism 22 from the arm 18 during the movement of the roller 17. Thetable 2, the angled lip 15 and the presser roller 17 now retire andleave the paper on the mold 6 in tubular form, somewhat loose. Anadjustable slide 23 actuated through a lever 24, link 25, and lever 26by a cam (see Fig. 19) on the shaft 14 then moves the folded tube ofpaper 1 along the mold bars 6 to the required dis tance, 6., suflicientfor the feeding of a fresh sheet, a portion of the tube projectingbeyond the mold bar 6, as at Fig. 4, but it is not necessary that adetermined length of the tube projects beyond the mold bars 6, as thefolders will do the necessary folding to close the end of the tube toform the bag irrespective of the length projecting, thus almost any sizesheet can be employed, without it being necessary to cut the sheets tofixed sizes. An end paste box 27 attached to sliding rod 28 having alever 29, and actuated by a cam (see Fig. 20) on the shaft 14, thenmoves against the top front end of the paper tube, projecting beyond theend of the mold bars 6 to apply some paste thereto. Top folders 30 fixedto the carrier of the paste box 27 then with the box 27 move down andfold the top portion, see Figs. 4 and 5. Then bottom end folder 31carried by rod 32 having a lever 33 operated by a cam (see Fig. 21) onthe shaft 14 rises and folds the bottom projecting side of the tube up,see Figs. 6 and 7, the bottom folder also flattening the side tabs bytwo spring controlled flaps 34 pivoted thereto, and having lugs 34 whichact against left and right shutters 35 to be opened out and transfer thepaste to the tabs, the shutters being fixed on pivoted rods 36 carryingarms 37 connected by links 38 to a lever 39 operated by a cam (see Fig.22) on the shaft 14 for giving the shutters a reciprocating radialmotion, these flaps 34 also pasting the tabs, having received enoughpaste while stationary from a couple of paste boxes 40, see Figs. 1 and23, said boxes 40 being carried by arms 41 fixed on vertical shafts 42,said shafts obtaining a reciprocal radial movement by arm 46 andconnecting rods 43 through levers 45, said levers being mounted on theshaft 16, the lever 44 being actuated by a cam (see Fig. 17) on theshaft 14 to produce the reciprocation of the boxes 40. At the same timethe lip 15 is acting on a newly placed sheet which has been folded onthe mold 6. The tabs are then turned and pressed against the end of themold bars 6 by the pair of shutters 35, see Figs. 1, 6, 7 and 8. Theopen bag is then pushed off to a certain distance by a plunger 47, seeFig. 9, arranged between the mold bars and operated by a lever 40connecting rod 49 to a lever 50 actuated by a cam (see Fig. 25) on theshaft 14, the end 51 forming the resistance to the folders and flaps.The bag is then pushed between quadruple reciprocating sectors 52, 53,54, 55, situate on pivoted rods 56, which rods are connected by toothedgearing 57 actuated by a toothed wheel 58 on the main driving shaft 59,this carrying a pulley 6O operable by a belt 61. The sectors arearranged between guide plates 62 held between the shafts 56 to preventthe bag swelling while being collapsed; the

plunger 47 retires and the sectors 52, 53, 54,

55 approach each other, and fingers 63 carried by arms 64 controlled bya spring 65, the arms 64 carrying inwardly projecting noses 66 which areoperated by a pivoted lever 67 actuated by the cam 68 on the shaft 14,the fingers 63 press in the open wings or tabs of the bag, which mayhave come open due to the bag being pushed off the mold and the pastenot being quite dry, and at the same time flexible tuck springs 69carried by arms 70 controlled by a spring 71 and actuated throu h adepending arm 72 by a cam on the shaft 14, one on each side of each setof sectors, are advanced to the side walls of the bag and folds theminward and during this movement, a presser device 73 mounted on a shaft74 and operable by the cam 68 through the lever 75 has been moved infront of the bag to form a resistance to insure the flat bottom beingimparted to the bag during the after folding, and the open wings or tabsbeing positively stuck down, see Figs. 10 and 11.

hen the tuckers 69 have effected their movement, the sectors 52, 53, 54,55 move Ward, the sectors drawing the bag off the mold bar 6 andcarrying it to a lifting roller 7 6 pivoted in the frame and operated bythe gear for passage to flattening rollers 77 also operated by gear anda delivery table 78, one sector 52 pressing the bag 7 against thelifting roller 76, and causing the right angled end to flatten on theunder side of the bag, see Figs. 13 and 14.'

By using quadruple reciprocating sectors, the paper tube is grasped atfour different places, thus drawing forward and collapsing the partlyformed bag with a parallel motion, insuring a parallel tube andpreventing the spreading or contracting of the bag.

By using fleizible tuck springs 69, for forming the inward tuck of thebag, the paper is always kept taut, which prevents it crumpling, whileat the same time they bend sufliciently to prevent its being slit orpierced, which they would be likely to do if rigid. The presser 73 worksover against both the top and bottom front sectors 52, 54:, as theymeet, and as this presser 73 falls back, the lifting and turning roller76 working against the front top sector 52, turns the bag upward, andcarries same forward into the flattening rollers 77, which delivers sameon to the table 78 for collec tion. Where simple cams are employed foractuating the parts, springs are employed to keep the mechanism normal,but when race cams are employed, the springs may be dispensed with.

lVhat I claim and desire to secure by Lettors Patent is 1. A paper bagmachine having a rising and falling table provided with a platform, saidtable being also provided with a gage, and a roller, combined with asensitive finger to draw a sheet of paper from said platform againstsaid gage.

2. In a paper bag machine, means for supporting a tubular bag blank,combined with folding mechanism for folding the bottom portion of thebottom of the bag, and flattening the side tabs, spring controlled flapswhich cooperate with the folding mechanism for pasting the tabs, meansfor applying paste to the said flaps, and means for folding the tabs onthe end of the bag.

3. In a paper bag machine, the combination of a mold for receiving apaper bag blank, means for pushing the bag nearly off the mold, aplurality of cooperating opposed sectors for flattening the bag anddrawing same from the mold, a presser device against which the bottom ofthe bag is flattened by the first two sectors, and spring controlledtucking means for folding in two opposite sides of the bag.

4. In a paper bag machine, the combination of a mold for receiving apaper bag blank, a plurality of cooperating opposed sectors for drawingthe bag from the mold,

and spring controlled tucking means for the bag.

5. In a paper bag machine, a rising and falling table provided with aplatform, said table having a gage and a roller, combined with asensitive finger to draw a sheet of paper from said platform againstsaid gage, a mold or forming device, a pasting roller, means for placinga sheet of paper about said mold, means for folding one edge of thepaper, a yieldingly mounted folding and pressing roller movable to pressthe other edge of the paper against the paste roller, and then presssuch pasted edge on the other edge of the paper to form a tubular blank,means for moving the tubular blank along the mold for one end to'projecttherefrom, a movably mounted carrier, a paste box and folding mechanismsupported on the carrier for pasting and folding down the top portionand top sides of the end of the tubular blank, folding mechanism forfolding up the bottom end and lower sides of the end of the tubularblank and flattening the tabs formed by the folded sides, springcontrolled flaps which cooperate with the folding mechanism for pastingthe tabs, means for applying paste to the said flaps, means for foldingthe tabs 011 the end of the bag, means for pushing the bag nearly oifthe tube, a plurality of cooperating opposed sectors for flattening thebag and drawing same from the mold, a presser device against which thebottom of the bag is flattened by the first two sectors, springcontrolled tucking means for folding in two opposite sides of the bag,means for folding the bottom of the bag in approximately the same planeas the bag and ejecting same from the machine.

6. In a paper bag machine, the combination of a mold for supporting atubular bag, a plurality of sectors arranged in cooperating pairs forcompressing the bag and for drawing it off the mold, spring controlledtucking mechanism for the bag, and presser and lifting rollers betweenwhich the bag is received from the mold.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

WALTER FRICKER.

Witnesses:

FREDERICK CHARLES SMITH, WILLIAM; OSWALD BROWN.

